Hook for fastening belt device



FIG. 1 is a front perspective view of a hook for a fastening belt device showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a right side elevational view thereof; and,

FIG. 8 is a rear perspective view embodying the utilization of my new design, the fastening belt device depicted by means of broken lines being for illustrative purposes only and forming no part of the claimed design. 

The ornamental design for a hook for fastening belt device, as shown and described. 